angulus an·gu·lus (āng'gyə-ləs)
n. pl. an·gu·li (-lī')
An angle or a corner.
angulus isosceles, or angulus quicrurus, is a triangle having equall shankes unto another.
Literally that; for the receding Porch is a deep 'angulus,' and its mid-pillar is the 'Head of the Corner.'
angulus contractus, A touch angle is an angle of a straight touch-line and a periphery.
Ille terrarum mihi prter omnes / angulus ridet—That nook of the world has charms for me before all else.
In the phrase angulus primi motus, angulus must be taken to mean angular motion.